On 19 October 2026, Google extended notebooks in Gemini to Workspace users in the European Economic Area. That makes it a useful time to separate three questions: can this account open a notebook, can the notebook accept another source, and can it generate another answer? Availability is not an unlimited allowance.
Adding a source and generating an answer consume different kinds of capacity in Gemini Notebook. Waiting for an AI usage reset will not necessarily create room in a notebook that already holds its permitted number of sources.
Identify the actual message
Check the source count for that notebook, the selected file’s size and length, and the account’s usage panel separately. Google’s current help describes compute-based usage with refresh windows and a weekly ceiling. Do not combine that mechanism with an older daily-generation table as if the units were interchangeable.
For example, an upload rejected before processing calls for a source-format or capacity check. A generation paused after sources were added calls for the usage panel. A collaborator’s larger subscription does not automatically increase your own limits.
Preserve the research trail
Before removing sources to make space, keep their original files and record which generated artifacts depend on them. Recheck the current plan page and the message shown in your account; notebook capacity, file restrictions and AI usage can change independently.
For a small check, use a notebook with two short, permitted source files and note its source count. If another small source fits but generation is paused, removing one of the original files is not a demonstrated fix. Open Settings → Usage in Gemini Notebook and read the account’s refresh and weekly-limit information. In managed Workspace, both Gemini and Gemini Notebook access must also be enabled. Limits shown for the standalone notebook and the Gemini app can differ; read the help for the surface you are actually using.